Commit | Line | Data |
---|---|---|
d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
35978408 MV |
2 | /* |
3 | * linux/drivers/pcmcia/pxa2xx_palmtx.c | |
4 | * | |
5 | * Driver for Palm T|X PCMCIA | |
6 | * | |
9ed3fbf1 | 7 | * Copyright (C) 2007-2011 Marek Vasut <marek.vasut@gmail.com> |
35978408 MV |
8 | */ |
9 | ||
10 | #include <linux/module.h> | |
11 | #include <linux/platform_device.h> | |
235a175c | 12 | #include <linux/gpio.h> |
35978408 MV |
13 | |
14 | #include <asm/mach-types.h> | |
a09e64fb | 15 | #include <mach/palmtx.h> |
35978408 MV |
16 | #include "soc_common.h" |
17 | ||
235a175c MV |
18 | static struct gpio palmtx_pcmcia_gpios[] = { |
19 | { GPIO_NR_PALMTX_PCMCIA_POWER1, GPIOF_INIT_LOW, "PCMCIA Power 1" }, | |
20 | { GPIO_NR_PALMTX_PCMCIA_POWER2, GPIOF_INIT_LOW, "PCMCIA Power 2" }, | |
21 | { GPIO_NR_PALMTX_PCMCIA_RESET, GPIOF_INIT_HIGH,"PCMCIA Reset" }, | |
235a175c MV |
22 | }; |
23 | ||
35978408 MV |
24 | static int palmtx_pcmcia_hw_init(struct soc_pcmcia_socket *skt) |
25 | { | |
574047f9 MV |
26 | int ret; |
27 | ||
235a175c MV |
28 | ret = gpio_request_array(palmtx_pcmcia_gpios, |
29 | ARRAY_SIZE(palmtx_pcmcia_gpios)); | |
574047f9 | 30 | |
a9bb5a4b RK |
31 | skt->stat[SOC_STAT_RDY].gpio = GPIO_NR_PALMTX_PCMCIA_READY; |
32 | skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready"; | |
574047f9 | 33 | |
574047f9 | 34 | return ret; |
35978408 MV |
35 | } |
36 | ||
37 | static void palmtx_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) | |
38 | { | |
235a175c | 39 | gpio_free_array(palmtx_pcmcia_gpios, ARRAY_SIZE(palmtx_pcmcia_gpios)); |
35978408 MV |
40 | } |
41 | ||
42 | static void palmtx_pcmcia_socket_state(struct soc_pcmcia_socket *skt, | |
43 | struct pcmcia_state *state) | |
44 | { | |
45 | state->detect = 1; /* always inserted */ | |
35978408 MV |
46 | state->vs_3v = 1; |
47 | state->vs_Xv = 0; | |
48 | } | |
49 | ||
50 | static int | |
51 | palmtx_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, | |
52 | const socket_state_t *state) | |
53 | { | |
54 | gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER1, 1); | |
55 | gpio_set_value(GPIO_NR_PALMTX_PCMCIA_POWER2, 1); | |
56 | gpio_set_value(GPIO_NR_PALMTX_PCMCIA_RESET, | |
57 | !!(state->flags & SS_RESET)); | |
58 | ||
59 | return 0; | |
60 | } | |
61 | ||
35978408 MV |
62 | static struct pcmcia_low_level palmtx_pcmcia_ops = { |
63 | .owner = THIS_MODULE, | |
64 | ||
65 | .first = 0, | |
66 | .nr = 1, | |
67 | ||
68 | .hw_init = palmtx_pcmcia_hw_init, | |
69 | .hw_shutdown = palmtx_pcmcia_hw_shutdown, | |
70 | ||
71 | .socket_state = palmtx_pcmcia_socket_state, | |
72 | .configure_socket = palmtx_pcmcia_configure_socket, | |
35978408 MV |
73 | }; |
74 | ||
75 | static struct platform_device *palmtx_pcmcia_device; | |
76 | ||
77 | static int __init palmtx_pcmcia_init(void) | |
78 | { | |
79 | int ret; | |
80 | ||
81 | if (!machine_is_palmtx()) | |
82 | return -ENODEV; | |
83 | ||
84 | palmtx_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); | |
85 | if (!palmtx_pcmcia_device) | |
86 | return -ENOMEM; | |
87 | ||
88 | ret = platform_device_add_data(palmtx_pcmcia_device, &palmtx_pcmcia_ops, | |
89 | sizeof(palmtx_pcmcia_ops)); | |
90 | ||
91 | if (!ret) | |
92 | ret = platform_device_add(palmtx_pcmcia_device); | |
93 | ||
94 | if (ret) | |
95 | platform_device_put(palmtx_pcmcia_device); | |
96 | ||
97 | return ret; | |
98 | } | |
99 | ||
100 | static void __exit palmtx_pcmcia_exit(void) | |
101 | { | |
102 | platform_device_unregister(palmtx_pcmcia_device); | |
103 | } | |
104 | ||
574047f9 | 105 | module_init(palmtx_pcmcia_init); |
35978408 MV |
106 | module_exit(palmtx_pcmcia_exit); |
107 | ||
108 | MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); | |
109 | MODULE_DESCRIPTION("PCMCIA support for Palm T|X"); | |
110 | MODULE_ALIAS("platform:pxa2xx-pcmcia"); | |
111 | MODULE_LICENSE("GPL"); |